<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
    <body>
    <a href='#' onclick='doLogin()'>问题跟踪系统</>
        <form name="loginform" action='http://10.5.19.241:8980/s.html' method="post"  target="_blank" >
                        <input type="hidden" name="os_username"size="25" value="admin">
        </form>
    </body>
</html>
<script>
function doLogin(){
    document.loginform.submit();
}
</script>